HR1707

HR1707 is a variable and double giant star in the constellation of Auriga.

HR1707 visual magnitude is 6.5. Because of its reltive faintness, HR1707 should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The table below summarizes the key facts about HR1707:

Color of HR1707 ⬤

Magnitude of HR1707 6.5

Class Giant

VISIBILITY RIGHT NOW HR1707 is above the horizon from Greenwich, United Kingdom [change]. Altitude: 35°.

Celestial coordinates and finder chart of HR1707

HR1707 is situated north of the celestial equator, as such, it is more easily visible from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR1707 are provided in the following table:

Right Ascension J2000 05h 17m 17s

Declination J2000 +53° 35’ 09”

Galactic Longitude 156.37°

Galactic Latitude 8.97°

Constellation Auriga

The simplified sky map below shows the position of HR1707 in the sky:

Simplified finder chart for HR1707.

Visibility of HR1707 from your location

Location: Greenwich, United Kingdom [change]
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

HR1707 is circumpolar and transits at 16:42 UTC (altitude: 87.9°)

Digitized Sky Survey image of HR1707

The image below is a photograph of HR1707 from the Digitized Sky Survey 2 (DSS2 - see the credits section) taken in the red channel. The area of sky represented in the image is 0.5x0.5 degrees (30x30 arcmins). The proper motion of HR1707 is 0.016 arcsec per year in Right Ascension and -0.021 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR1707. The red arrow shows the motion of HR1707 during the next 10000 years (2.67 arcmin in Right Ascension and -3.50 arcmin in declination);

Spectral properties of HR1707

HR1707 belongs to spectral class M7 and has a luminosity class of III corresponding to a giant star.

Spectral Type M7III

Color Index (B-V) 1.66

Temperature of HR1707 3568K

HR1707 star system properties

HR1707 is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the HR1707 double sysyem:

Main star magnitude 6.5

Secondary star magnitude 8.6

Magnitude difference 2.1

Separation 46.4 arcsec

Alternative designations of HR1707

Henry Draper Catalogue HD34019

SAO Catalogue SAO25112

Durchmusterung Catalogue BD+53 882

General Catalogue of Variable Stars R Aur

Aitken Double Star Catalogue ADS3845

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